Simple 12V DC Fan Speed Controller Using IC 555

In this post we are going to construct a circuit to control the speed of 12V DC fan which is commercially available to run on 12V Solar panels and Batteries. The utilization of DC fan become common where access to electricity is not established the area or where power cuts are pretty common or even […]

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PWM Lamp Dimmer using IC 555

This project discusses in detail about the PWM lamp dimmer. It will use IC NE555. Earlier the dimmers built on linear regulators was not efficient compared to the current one. For instance, if the old dimmers can achieve efficiency of 50% the new one is quite efficient to achieve 90%. Moreover, while the less power […]

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